+ regs->fp = fp;
+ regs->sp = sp;
+ regs->ip = abort_ip;
+ regs->cookie = vm_cookie;
+
+ return scm_double_cell (tag, SCM_UNPACK (k), (scm_t_bits)regs,
+ SCM_UNPACK (winds));
+}
+
+/* Only to be called if the SCM_PROMPT_SETJMP returns 1 */
+SCM
+scm_i_prompt_pop_abort_args_x (SCM vm)
+{
+ size_t i, n;
+ SCM vals = SCM_EOL;
+
+ n = scm_to_size_t (SCM_VM_DATA (vm)->sp[0]);
+ for (i = 0; i < n; i++)
+ vals = scm_cons (SCM_VM_DATA (vm)->sp[-(i + 1)], vals);
+
+ /* The abort did reset the VM's registers, but then these values
+ were pushed on; so we need to pop them ourselves. */
+ SCM_VM_DATA (vm)->sp -= n + 1;
+ /* FIXME NULLSTACK */
+
+ return vals;
+}
+
+
+#ifdef WORDS_BIGENDIAN
+#define OBJCODE_HEADER(main,meta) 0, 0, 0, main, 0, 0, 0, meta+8
+#define META_HEADER(meta) 0, 0, 0, meta, 0, 0, 0, 0
+#else
+#define OBJCODE_HEADER(main,meta) main, 0, 0, 0, meta+8, 0, 0, 0
+#define META_HEADER(meta) meta, 0, 0, 0, 0, 0, 0, 0
+#endif
+
+#define OBJCODE_TAG SCM_MAKE_OBJCODE_TAG (SCM_OBJCODE_TYPE_STATIC, 0)
+
+#if defined (SCM_ALIGNED)
+#define SCM_DECLARE_STATIC_ALIGNED_ARRAY(type, sym) \
+static const type sym[]
+#define SCM_STATIC_ALIGNED_ARRAY(alignment, type, sym) \
+static SCM_ALIGNED (alignment) const type sym[]
+#define SCM_STATIC_OBJCODE(sym) \
+ SCM_DECLARE_STATIC_ALIGNED_ARRAY (scm_t_uint8, sym##__bytecode); \
+ SCM_STATIC_ALIGNED_ARRAY (8, scm_t_cell, sym##__cells) = { \
+ { SCM_PACK (OBJCODE_TAG), SCM_PACK (sym##__bytecode) }, \
+ { SCM_BOOL_F, SCM_PACK (0) } \
+ }; \
+ static const SCM sym = SCM_PACK (sym##__cells); \
+ SCM_STATIC_ALIGNED_ARRAY (8, scm_t_uint8, sym##__bytecode)
+#else
+#define SCM_STATIC_OBJCODE(sym) \
+static SCM sym; \
+static scm_t_uint8 *sym##_bytecode; \
+SCM_SNARF_INIT(sym##_bytecode = scm_gc_malloc_pointerless (sizeof(sym##_bytecode__unaligned), "partial continuation stub"); \
+ memcpy (sym##_bytecode, sym##_bytecode__unaligned, sizeof(sym##_bytecode__unaligned));) \
+SCM_SNARF_INIT(sym = scm_double_cell (OBJCODE_TAG, \
+ (scm_t_bits)sym##_bytecode, \
+ SCM_UNPACK (SCM_BOOL_F), \
+ 0);) \
+static const scm_t_uint8 sym##_bytecode__unaligned[]
+#endif
+
+
+SCM_STATIC_OBJCODE (cont_objcode) = {
+ /* Like in continuations.c, but with partial-cont-call. */
+ OBJCODE_HEADER (8, 19),
+ /* leave args on the stack */
+ /* 0 */ scm_op_object_ref, 0, /* push scm_vm_cont object */
+ /* 2 */ scm_op_object_ref, 1, /* push internal winds */
+ /* 4 */ scm_op_partial_cont_call, /* and go! */
+ /* 5 */ scm_op_nop, scm_op_nop, scm_op_nop, /* pad to 8 bytes */
+ /* 8 */
+
+ /* We could put some meta-info to say that this proc is a continuation. Not sure
+ how to do that, though. */
+ META_HEADER (19),
+ /* 0 */ scm_op_make_eol, /* bindings */
+ /* 1 */ scm_op_make_eol, /* sources */
+ /* 2 */ scm_op_make_int8, 0, scm_op_make_int8, 5, /* arity: from ip 0 to ip 7 */
+ /* 6 */ scm_op_make_int8_0, /* the arity is 0 required args */
+ /* 7 */ scm_op_make_int8_0, /* 0 optionals */
+ /* 8 */ scm_op_make_true, /* and a rest arg */
+ /* 9 */ scm_op_list, 0, 5, /* make a list of those 5 vals */
+ /* 12 */ scm_op_list, 0, 1, /* and the arities will be a list of that one list */
+ /* 15 */ scm_op_list, 0, 3, /* pack bindings, sources, and arities into list */
+ /* 18 */ scm_op_return /* and return */
+ /* 19 */
+};
+
+
+static SCM
+reify_partial_continuation (SCM vm, SCM prompt, SCM extwinds,
+ scm_t_int64 cookie)
+{
+ SCM vm_cont, dynwinds, intwinds = SCM_EOL, ret;
+ scm_t_uint32 flags;
+
+ /* No need to reify if the continuation is never referenced in the handler. */
+ if (SCM_PROMPT_ESCAPE_P (prompt))
+ return SCM_BOOL_F;